LMN bus cable
RJ12 LMN bus cable (RS485) in three versions – from robust to highly flexible
The DIINNO LMN bus cables connect the base meter (Basiszähler) and the smart meter gateway (SMGw) via the wired LMN (local metrological network) interface (RJ12, RS485). All versions share the same electrical basis: two RJ12 plugs (6P6C) with 1:1 pin assignment, gold-plated contacts and a UTP CAT5E cable with three twisted pairs.
Three versions cover different installation situations: LMN-BK without boot as the robust basic version, LMN-BKK with a short 4 mm boot for more strain relief, and LMN-BKF additionally with a highly flexible TPE sheath for particularly tight meter cabinets.
Request a quotePlaced on the EU market by: DIINNO GmbH, Brunsbütteler Damm 93, 13581 Berlin, Germany
We sell exclusively to businesses (entrepreneurs within the meaning of Section 14 of the German Civil Code, BGB), legal entities under public law and special funds under public law. No sales to consumers.
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Versions compared
All three versions are electrically identical and use the same conductors. They differ in boot, plug length and sheath material – the rows highlighted in blue show where the versions differ.
| Attribute | LMN-BK robust basic version | LMN-BKK with short boot | LMN-BKF highly flexible, tightest spaces |
|---|---|---|---|
| Boot (strain relief) | without boot | short, 4 mm | short, 4 mm |
| Sheath material | PVC | PVC | TPE (highly flexible) |
| Plug length | shorter design without boot | 16.5 mm | 16.5 mm |
| Typical application | standard routing in the meter panel | frequent plugging, more strain relief | tight meter cabinets, deep sockets |
| Connection | 2 × RJ12 (6P6C), 1:1 | 2 × RJ12 (6P6C), 1:1 | 2 × RJ12 (6P6C), 1:1 |
| Plug housing | PC, transparent | PC, transparent | PC, transparent |
| Contact pins | gold-plated | gold-plated | gold-plated |
| Cable | UTP CAT5E, 3 × twisted pair | UTP CAT5E, 3 × twisted pair | UTP CAT5E, 3 × twisted pair |
| Inner conductor / insulation | Cu / HDPE | Cu / HDPE | Cu / HDPE |
| Cable colour | Blue | Blue | Blue |
| Contact resistance | < 300 mΩ | < 300 mΩ | < 300 mΩ |
| Contact current rating | > 1 A | > 1 A | > 1 A |
| Dielectric strength | > 40 V | > 40 V | > 40 V |
| Insulation voltage | > 6 kV | > 6 kV | > 6 kV |
| Temperature | −40 °C to +80 °C | −40 °C to +80 °C | −40 °C to +80 °C |
| Durability | 750 mating cycles | 750 mating cycles | 750 mating cycles |
| Cable lengths | 30 / 60 / 100 / 150 / 200 / 300 / 500 / 1000 cm · custom lengths available | 30 / 60 / 100 / 150 / 200 / 300 / 500 / 1000 cm · custom lengths available | 30 / 60 / 100 / 150 / 200 / 300 / 500 / 1000 cm · custom lengths available |
| Article number | LMN-BKxxx | LMN-BKKxxx | LMN-BKFxxx |
| Datasheet | available as PDF | available as PDF | available as PDF |
All three versions are documented with photos – see the image gallery. xxx = cable length in cm (e.g. LMN-BKF060 = 60 cm). Custom lengths are available. Highlighted in blue = distinguishing feature.
Technical features
Features
- Three versions: LMN-BK (without boot), LMN-BKK (short boot), LMN-BKF (short boot + TPE, highly flexible)
- LMN-BKK and LMN-BKF: 16.5 mm long RJ12 plug – fits deep SMGw sockets
- 4 mm boot (BKK/BKF) for an optimal fit in the tight interiors of base meters
- LMN-BKF: soft TPE sheath for particularly tight installation situations
- Gold-plated contact pins for reliable contact
- Robust durability of 750 mating cycles
- Cable lengths 30–1000 cm, custom lengths available
Technical data
- Connection
- 2× RJ12 (6P6C) plug, 1:1 pin assignment
- Plug housing
- PC, transparent
- Contact pins
- gold-plated
- Cable
- UTP, CAT5E, 3× twisted pair
- Inner conductor
- Cu (copper)
- Insulation
- HDPE
- Cable sheath
- PVC (BK, BKK) · TPE (BKF) – CE & RoHS
- Cable colour
- Blue
- Contact resistance
- < 300 mΩ
- Contact current rating
- > 1 A
- Dielectric strength
- > 40 V
- Insulation voltage
- > 6 kV
- Plug length
- 16.5 mm (LMN-BKK, LMN-BKF)
- Temperature
- −40 °C to +80 °C
- Durability
- 750 mating cycles
Documents
Datasheets for all three versions as PDF (German).
Tender text
Short text for use in bills of quantities.
RJ12 LMN bus cable (RS485) for the connection between base meter and smart meter gateway, available in three versions: LMN-BK without boot, LMN-BKK with short 4 mm boot and LMN-BKF with short boot and highly flexible TPE sheath. Design with two RJ12 plugs (6P6C, 1:1 pin assignment), transparent PC housing and gold-plated contact pins; UTP CAT5E cable with 3 × twisted pair, copper inner conductor and HDPE insulation in blue. Contact resistance < 300 mΩ, contact current rating > 1 A, dielectric strength > 40 V, insulation voltage > 6 kV, operating temperature −40 °C to +80 °C, durability 750 mating cycles. With LMN-BKK and LMN-BKF, the 16.5 mm long plug reaches deep-set SMGw sockets. Cable lengths 30, 60, 100, 150, 200, 300, 500 and 1000 cm for all versions, custom lengths available. Make: DIINNO GmbH or equivalent.
